Nursery stock planting method on coral sand of newly-built tropical dredger-reclaimed reef

A technology of coral sand and seedlings, applied in the field of saline-alkali landscaping, which can solve the problems of a large number of nutrient substrates and construction of salt drainage projects that cannot be reclamated in tropical areas, and achieve the effects of promoting the construction of ecological islands and reefs, improving fertility, and increasing survival rates

Active Publication Date: 2017-05-31
青岛冠中生态股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for planting seedlings on coral sand of newly built tropical reclamation islands and reefs, which solves the problem that the planting of seedlings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Location: one island and reef

[0020] Tree species selection: Casuarina equisetifolia, Foxtail coconut, plant height 2.5-2.7m.

[0021] Rooting powder treatment: Spray the ABT rooting powder solution at a concentration of 70mg / kg on the roots of the seedlings for 10 minutes.

[0022] Planting pit excavation and treatment: The planting pit size is 1m×1m×0.6m, the spacing is 2m×2m, and desalinated seawater is used to wash, so that the salt content of the periphery and the lower part of the planting pit at 50cm is 0.06%, and the pH value is both 7.8.

[0023] Laying of nutrient soil and isolation layer: Use red soil nutrient soil to evenly cover the bottom of the planting pit, with a thickness of 15cm.

[0024] Backfilling and covering nutrient soil: Use coral sand or sea sand washed with desalinated seawater as planting soil backfill. The planting soil has a particle size of less than 0.3cm, a salt content of 0.06%, and a pH of 7.8; in the backfilled planting soil Spread a layer...

Embodiment 2

[0029] Location: An island reef two

[0030] Tree species selection: coconut, plant height 2.9m.

[0031] Rooting powder treatment: Rooting powder is used to treat the roots of seedlings.

[0032] Planting pit excavation and treatment: The planting pit specification is 1m×1m×0.6m, the spacing is 2m×2m, and desalinated seawater is used for leaching.

[0033] Laying of nutrient soil and isolation layer: Use red soil nutrient soil to evenly cover the bottom of the planting pit.

[0034] Backfilling and covering nutrient soil: Use coral sand or sea sand washed with desalinated seawater as backfill sand, and then spread a layer of red soil nutrient soil on the surface of the backfill sand.

[0035] Maintenance management: Use desalinated seawater for irrigation.

[0036] After a period of observation, the survival rate of transplanting seedlings on newly-built refill islands and reefs with this planting technique was 96%.

Embodiment 3

[0038] Location: an island and reef three

[0039] Selection of tree species: resistant to Pterocarpus vulgaris, and olive kernel, plant height 2.2-2.5m.

[0040] Rooting powder treatment: spray the ABT rooting powder solution at a concentration of 50 mg / kg on the roots of the seedlings, and the treatment time is 20 minutes.

[0041] Planting pit excavation and treatment: The planting pit specifications are 1m×1m×0.6m, the spacing is 2m×2m, and the desalinated seawater is used to rinse 3 times, so that the salt content of the coral sand or sea sand at 50cm around the planting pit is equal Less than 0.1%, pH value is 7.6.

[0042] Laying of nutrient soil and isolation layer: Use red soil nutrient soil to evenly cover the bottom of the planting pit with a thickness of 10cm.

[0043] Backfilling and covering nutrient soil: Use desalinated seawater to wash the coral sand or sea sand dug from the planting pit, and use the coral sand or sea sand washed by desalinated seawater as the backfill...

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Abstract

The invention discloses a nursery stock planting method on coral sand of a newly-built tropical dredger-reclaimed reef. The method comprises the steps of 1, adopting a nursery stock of which the height does not exceed 3 m; 2, treating the nursery stock with ABT rooting powder; 3, digging a planting pit, and leaching the plating pit with desalination seawater; 4, covering the bottom of the planting pit with red nutrient soil; adopting the desalination seawater to leach the coral sand or sea sand dug from the planting pit, and refilling the coral sand and the sea sand; 6, paving the surface of the planting pit with a layer of red nutrient soil, and irrigating with the desalination seawater. According to the nursery stock planting method on the coral sand of the newly-built tropical dredger-reclaimed reef, by leaching the coral sand or the sea sand with the desalination seawater, the salt and alkali content is lowered, the cycle is short, and the cost is low; by covering the red nutrient soil, not only is the soil structure of the planting pit improved and the pH value of the coral sand or the sea sand lowered, but also the red nutrient soil can be served as a bottom salt and alkali isolation layer; by using the coral sand and the sea sand as planting soil, not only is the cost saved, but also the original ecology of the reef is guaranteed; according to the planting technology, the survival rate of the transplanted nursery stock on the newly-built dredger-reclaimed reef is raised to 95% or above.

Description

Technical field [0001] The invention belongs to the technical field of methods for greening saline-alkali land, and particularly refers to a method for planting seedlings on coral sand of newly-built tropical refill islands. Background technique [0002] The soil structure of newly built refill islands and reefs is mainly coral sand or sea sand. These coral sands or sea sands are highly alkaline. This high-salinity characteristic is stressful for plant growth and has low nutrients. Transplanting seedlings on the reclaimed islands and reefs must be structurally improved. [0003] At present, some techniques for planting seedlings on coastal saline-alkali soils and coastal tidal flats have emerged; for example: Chinese patent CN103392459A provides a planting method for improving the survival of seedlings in sand. :3 mix, add the arbuscular mycorrhizal mycorrhizal mycorrhizal mycorrhizal mycorrhizal inoculant to the mixture with a mass ratio of 5-10:100 to make a slurry, dip the bare...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01G9/10A01G13/02A01B79/02
CPCA01B79/02A01G13/0225A01G17/005A01G9/0299A01G24/00
Inventor 许剑平李春林张方杰臧小龙
Owner 青岛冠中生态股份有限公司
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